/* $NetBSD: isa_machdep.h,v 1.14 2000/02/07 22:07:29 thorpej Exp $ */ /*- * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)isa.h 5.7 (Berkeley) 5/9/91 */ /* * Various pieces of the i386 port want to include this file without * or in spite of using isavar.h, and should be fixed. */ #ifndef _I386_ISA_MACHDEP_H_ /* XXX */ #define _I386_ISA_MACHDEP_H_ /* XXX */ #include #include /* * XXX THIS FILE IS A MESS. copyright: berkeley's probably. * contents from isavar.h and isareg.h, mostly the latter. * perhaps charles's? * * copyright from berkeley's isa.h which is now dev/isa/isareg.h. */ /* * Types provided to machine-independent ISA code. */ struct i386_isa_chipset { struct isa_dma_state ic_dmastate; }; typedef struct i386_isa_chipset *isa_chipset_tag_t; struct device; /* XXX */ struct isabus_attach_args; /* XXX */ /* * Functions provided to machine-independent ISA code. */ void isa_attach_hook __P((struct device *, struct device *, struct isabus_attach_args *)); int isa_intr_alloc __P((isa_chipset_tag_t, int, int, int *)); void *isa_intr_establish __P((isa_chipset_tag_t ic, int irq, int type, int level, int (*ih_fun)(void *), void *ih_arg)); void isa_intr_disestablish __P((isa_chipset_tag_t ic, void *handler)); int isa_mem_alloc __P((bus_space_tag_t, bus_size_t, bus_size_t, bus_addr_t, int, bus_addr_t *, bus_space_handle_t *)); void isa_mem_free __P((bus_space_tag_t, bus_space_handle_t, bus_size_t)); #define isa_dmainit(ic, bst, dmat, d) \ _isa_dmainit(&(ic)->ic_dmastate, (bst), (dmat), (d)) #define isa_dmacascade(ic, c) \ _isa_dmacascade(&(ic)->ic_dmastate, (c)) #define isa_dmamaxsize(ic, c) \ _isa_dmamaxsize(&(ic)->ic_dmastate, (c)) #define isa_dmamap_create(ic, c, s, f) \ _isa_dmamap_create(&(ic)->ic_dmastate, (c), (s), (f)) #define isa_dmamap_destroy(ic, c) \ _isa_dmamap_destroy(&(ic)->ic_dmastate, (c)) #define isa_dmastart(ic, c, a, n, p, f, bf) \ _isa_dmastart(&(ic)->ic_dmastate, (c), (a), (n), (p), (f), (bf)) #define isa_dmaabort(ic, c) \ _isa_dmaabort(&(ic)->ic_dmastate, (c)) #define isa_dmacount(ic, c) \ _isa_dmacount(&(ic)->ic_dmastate, (c)) #define isa_dmafinished(ic, c) \ _isa_dmafinished(&(ic)->ic_dmastate, (c)) #define isa_dmadone(ic, c) \ _isa_dmadone(&(ic)->ic_dmastate, (c)) #define isa_dmafreeze(ic) \ _isa_dmafreeze(&(ic)->ic_dmastate) #define isa_dmathaw(ic) \ _isa_dmathaw(&(ic)->ic_dmastate) #define isa_dmamem_alloc(ic, c, s, ap, f) \ _isa_dmamem_alloc(&(ic)->ic_dmastate, (c), (s), (ap), (f)) #define isa_dmamem_free(ic, c, a, s) \ _isa_dmamem_free(&(ic)->ic_dmastate, (c), (a), (s)) #define isa_dmamem_map(ic, c, a, s, kp, f) \ _isa_dmamem_map(&(ic)->ic_dmastate, (c), (a), (s), (kp), (f)) #define isa_dmamem_unmap(ic, c, k, s) \ _isa_dmamem_unmap(&(ic)->ic_dmastate, (c), (k), (s)) #define isa_dmamem_mmap(ic, c, a, s, o, p, f) \ _isa_dmamem_mmap(&(ic)->ic_dmastate, (c), (a), (s), (o), (p), (f)) #define isa_drq_isfree(ic, c) \ _isa_drq_isfree(&(ic)->ic_dmastate, (c)) #define isa_malloc(ic, c, s, p, f) \ _isa_malloc(&(ic)->ic_dmastate, (c), (s), (p), (f)) #define isa_free(a, p) \ _isa_free((a), (p)) #define isa_mappage(m, o, p) \ _isa_mappage((m), (o), (p)) /* * ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED * BY PORTABLE CODE. */ extern struct i386_bus_dma_tag isa_bus_dma_tag; /* * Cookie used by ISA dma. A pointer to one of these it stashed in * the DMA map. */ struct i386_isa_dma_cookie { int id_flags; /* flags; see below */ /* * Information about the original buffer used during * DMA map syncs. Note that origibuflen is only used * for ID_BUFTYPE_LINEAR. */ void *id_origbuf; /* pointer to orig buffer if bouncing */ bus_size_t id_origbuflen; /* ...and size */ int id_buftype; /* type of buffer */ void *id_bouncebuf; /* pointer to the bounce buffer */ bus_size_t id_bouncebuflen; /* ...and size */ int id_nbouncesegs; /* number of valid bounce segs */ bus_dma_segment_t id_bouncesegs[0]; /* array of bounce buffer physical memory segments */ }; /* id_flags */ #define ID_MIGHT_NEED_BOUNCE 0x01 /* map could need bounce buffers */ #define ID_HAS_BOUNCE 0x02 /* map currently has bounce buffers */ #define ID_IS_BOUNCING 0x04 /* map is bouncing current xfer */ /* id_buftype */ #define ID_BUFTYPE_INVALID 0 #define ID_BUFTYPE_LINEAR 1 #define ID_BUFTYPE_MBUF 2 #define ID_BUFTYPE_UIO 3 #define ID_BUFTYPE_RAW 4 /* * XXX Various seemingly PC-specific constants, some of which may be * unnecessary anyway. */ /* * RAM Physical Address Space (ignoring the above mentioned "hole") */ #define RAM_BEGIN 0x0000000 /* Start of RAM Memory */ #define RAM_END 0x1000000 /* End of RAM Memory */ #define RAM_SIZE (RAM_END - RAM_BEGIN) /* * Oddball Physical Memory Addresses */ #define COMPAQ_RAMRELOC 0x80c00000 /* Compaq RAM relocation/diag */ #define COMPAQ_RAMSETUP 0x80c00002 /* Compaq RAM setup */ #define WEITEK_FPU 0xC0000000 /* WTL 2167 */ #define CYRIX_EMC 0xC0000000 /* Cyrix EMC */ /* * stuff that used to be in pccons.c */ #define MONO_BASE 0x3B4 #define MONO_BUF 0xB0000 #define CGA_BASE 0x3D4 #define CGA_BUF 0xB8000 #define IOPHYSMEM 0xA0000 /* * Interrupt handler chains. isa_intr_establish() inserts a handler into * the list. The handler is called with its (single) argument. */ struct intrhand { int (*ih_fun) __P((void *)); void *ih_arg; u_long ih_count; struct intrhand *ih_next; int ih_level; int ih_irq; }; /* * ISA DMA bounce buffers. * XXX should be made partially machine- and bus-mapping-independent. * * DMA_BOUNCE is the number of pages of low-addressed physical memory * to acquire for ISA bounce buffers. * * isaphysmem is the location of those bounce buffers. (They are currently * assumed to be contiguous. */ #ifndef DMA_BOUNCE #define DMA_BOUNCE 8 /* one buffer per channel */ #endif extern vaddr_t isaphysmem; /* * Variables and macros to deal with the ISA I/O hole. * XXX These should be converted to machine- and bus-mapping-independent * function definitions, invoked through the softc. */ extern u_long atdevbase; /* kernel virtual address of "hole" */ /* * Given a kernel virtual address for some location * in the "hole" I/O space, return a physical address. */ #define ISA_PHYSADDR(v) ((void *) ((u_long)(v) - atdevbase + IOM_BEGIN)) /* * Given a physical address in the "hole", * return a kernel virtual address. */ #define ISA_HOLE_VADDR(p) ((void *) ((u_long)(p) - IOM_BEGIN + atdevbase)) /* * Miscellanous functions. */ void sysbeep __P((int, int)); /* beep with the system speaker */ #endif /* _I386_ISA_MACHDEP_H_ XXX */